AAS Sample Prep and Calibration

Atomic absorption spectroscopy (AAS) depends on careful sample preparation and calibration. Samples must be turned into clear solutions before measurement. That often means extra treatment to dissolve materials such as soils, animal tissues, and minerals.

Common sample prep methods include hot mi...

In atomic absorption measurements, solid samples are dissolved in a suitable solvent to form a clear solution before atomization.

Insoluble samples are digested with hot mineral acids, either on a hot plate or through microwave heating.

Other methods to obtain clear solutions include oxidizing the sample with liquid reagents, combu...